Development of a Low-Cost, Multi-Disciplinary Rotorcraft Simulation Facility

A low-cost rotorcraft simulation facility was developed for use in university-based multidisciplinaryresearchprograms.Theobjectivewastodevelopaflexibleandeffectiveresearch facility with a low initial cost and minimal recurring costs. The simulation facility was constructedentirelyfromcommerciallyavailablecommodityhardwarecomponents.Several computers are linked together via a local area network to form a “graphical cluster,” which allows for interaction between multiple computing nodes and multiple displays. The facility uses the open source FlightGear flight simulation code and the U.S.Army/NASA GENHEL flight dynamics model. In addition, a graphical user interface and a suite of data processing and analysis tools were developed using MATLAB. The system is being used for advanced research programs in the areas of flight control design, advanced rotorcraft flight dynamics modeling, and near real-time acoustics simulation.The use of open source software provides needed flexibility and cost-effectiveness, although incomplete or nonexistent documentation presented challenges. Overall, the simulation facility fulfills the needs of the university research environment in the areas of control design and rotorcraft acoustics. Some weaknesses related to control feel were noted, but were found to be acceptable relative to the low-cost nature of the facility.

[1]  Lyle N. Long,et al.  Simulation of Pilot Control Activity During Helicopter Shipboard Operations , 2003 .

[2]  Joseph F. Horn,et al.  Adaptive Model Inversion Control of a Helicopter with Structural Load Limiting , 2004 .

[3]  Andy Shaw,et al.  Determination of Planetary Meteorology from Aerobot Flight Sensors , 2002 .

[4]  Paul L. Redkoles,et al.  Distributed Flight Simulation Architecture using a PC/Linux Cluster , 2003 .

[5]  Guillaume,et al.  Toward a Better Understanding of Maneuvering Rotorcraft Noise , 2002 .

[6]  Geoffrey J. Jeram,et al.  DESIGN FOR HELICOPTER ACTIVE CONTROL SYSTEMS , 2002 .

[7]  Boschitsch,et al.  First-Principles Free-Vortex Wake Analysis for Helicopters and Tiltrotors , 2003 .

[8]  Joseph F. Horn,et al.  Near Real-Time Simulation of Rotorcraft Acoustics and Flight Dynamics , 2003 .

[9]  K. S. Brentner,et al.  Prediction of Helicopter Rotor Discrete Frequency Noise - A Computer Program Incorporating Realistic , 1986 .

[10]  D. L. Hawkings,et al.  Sound generation by turbulence and surfaces in arbitrary motion , 1969, Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences.

[11]  HighWire Press.  Philosophical Transactions of the Royal Society of London , 1781, The London Medical Journal.

[12]  Michael Rutkowski,et al.  Rapid Prototyping and Evaluation of Control System Designs for Manned and Unmanned Applications , 2000 .

[13]  Michael S. Selig,et al.  Icing encounter flight simulator with an integrated smart icing system , 2002 .

[14]  Sunjoo K. Advani,et al.  SIMONA - A RECONFIGURABLE AND VERSATILE RESEARCH FACILITY , 1997 .

[15]  Joseph F. Horn,et al.  A Study of Rotorcraft Noise Prediction in Maneuvering Flight , 2004 .

[16]  G. P. Succi,et al.  The prediction of helicopter rotor discrete frequency noise , 1982 .

[17]  Sahani,et al.  Hub Moment Limit Protection Using Neural Network Prediction , 2004 .

[18]  Jeffery A. Schroeder,et al.  Helicopter flight simulation motion platform requirements , 1998 .

[19]  Ruckel,et al.  High Fidelity Helicopter Simulation Using Free Wake, Lifting Line Tail, and Blade Element Tail Rotor Models , 2003 .

[20]  Gareth D. Padfield,et al.  Flight Simulation in Academia HELIFLIGHT in its First Year of Operation , 2001 .

[21]  Kenneth S. Brentner,et al.  Maneuvering Rotorcraft Noise Prediction: A New Code for a New Problem , 2002 .